diff --git a/roles/matrix-bridge-appservice-discord/defaults/main.yml b/roles/matrix-bridge-appservice-discord/defaults/main.yml
index daa83dea0..b2ef2cdf5 100644
--- a/roles/matrix-bridge-appservice-discord/defaults/main.yml
+++ b/roles/matrix-bridge-appservice-discord/defaults/main.yml
@@ -42,6 +42,7 @@ matrix_appservice_discord_bridge_domain: "{{ matrix_domain }}"
 matrix_appservice_discord_bridge_homeserverUrl: "{{ matrix_homeserver_url }}"
 matrix_appservice_discord_bridge_disablePresence: false
 matrix_appservice_discord_bridge_enableSelfServiceBridging: false
+matrix_appservice_discord_bridge_disablePortalBridging: false
 
 # Database-related configuration fields.
 #
diff --git a/roles/matrix-bridge-appservice-discord/templates/config.yaml.j2 b/roles/matrix-bridge-appservice-discord/templates/config.yaml.j2
index 6286a5d48..569a30304 100644
--- a/roles/matrix-bridge-appservice-discord/templates/config.yaml.j2
+++ b/roles/matrix-bridge-appservice-discord/templates/config.yaml.j2
@@ -28,6 +28,8 @@ bridge:
   disableJoinLeaveNotifications: false
   # Disable Invite echos from matrix
   disableInviteNotifications: false
+  # Disable portal briding (automatic room creation)
+  disablePortalBridging: {{ matrix_appservice_discord_bridge_disablePortalBridging|to_json }}
   # Auto-determine the language of code blocks (this can be CPU-intensive)
   determineCodeLanguage: false
 # Authentication configuration for the discord bot.